A few thoughts:
1. If it is green - get it - you'll enjoy it - you deserve it - save it (them) from a scrap heap
2. If stuck in the mud it is best to keep the recovery vehicle on dry land. To illustrate:
in Vietnam my platoon leader (yes, a Lieutenant) decided that a road might be mined (although wheeled vehicles were using it) so he had our Ontos platoon drive through a rice paddy. You can't appreciate what a brilliant idea that was until you've actually been in one. Vehicle #1 went in a ways and stuck, so he sent vehicle #2 to pull it out - also stuck. So he sent vehicle #3 to get 1 and 2 - also stuck. After wasting a tremendous amount of time (and getting all of us covered with mud (and other matter best not explored) we ended up with 4 vehicles cabled to each other and stuck and finally hooked up vehicle #5 which was on dry land to help the other 4 back out of the mess. Could have been accomplished much easier by connecting the tow cables together to get vehicle #1 out of the mess in the first place. Ah Lieutenants .. the stories I could tell.
3. The CUCV family (I'll include the M880 and M715) were modified civilian vehicles ... Civilian Utility Cargo Vehicles. None lasted for very long in service (I won't tell you what we did to a poor M1009 belonging to a Chaplain while doing recon on a tank range - it had never been off pavement before). I've got an M1009 and M1028 and I'm happy with both - even with the occasional snafu with the 24 volt system or so-so diesel, etc. They don't compare to a PURPOSE BUILT vehicle, eg. a duce which was built from the ground up to mil spec, not a civvy car that was modified. Big difference in the vehicles and the purchase price. The COTS (civilian off the shelf) program, such as CUCV, was a cost saving program to save a few bucks on items that didn't need to be totally bomb proof but could do a job. Not always successful - what government program has been - but the concept is sound - just a tad weak in the execution some time.
4. If the budget can handle it, and the spouse will tolerate it, and you have sufficient parking - get er done!
5. I thought it would be really cool to have one each of the M1009, 1010, 1008, etc. trucks and variants. Would that make a cool display at an MV show or in a parade? Trying to figure out how I'm going to add an M1028a2/3 dually to my inventory.
Anyway - green iron is cool, historical, patriotic, a pretty good deal for the price, and a heck of an accomplishment if you can restore some of the older stuff. Jump in and have a great time!!